Black Resigns To Join McCain's Campaign

Legendary Washington hand Charlie Black, a senior adviser to Sen. John McCain,has resigned from his public affairs / lobbying firm in order to join McCain on the trail full-time.

Black, currently the chairman of BKSH Worldwide (a subsidiary of Burson-Marsteller -- Mark Penn's Burson Marsteller), has not worked full-time for a presidential campaign since 1992, when he served as a principle spokesperson for Pres. George W. Bush's re-election efforts.

The resignation takes effect Monday. Black has close ties to virtually every wing of the Republican Party and has been a key link between the campaign and the White House.

(For a closer look at McCain's ties to lobbyists, check Mike Scherer's article in Time.)